Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2009
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=42913584001 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Direct and simultaneous spectrophotometric determination of Ni (II) and Co (II) using diethanoldithiocarbamate as complexing agent P. A. Antunes G. Bannach G. O. Chierice E. T. G. Cavalheiro Química Cobalt Nickel Dithiocarbamate Spectrophotometry Simultaneous determination A direct spectrophotometric method for simultaneous determination of Co(II) and Ni(II), with diethanoldithiocarbamate (DEDC) as complexing agent, is proposed using the maximum absorption at 360 and 638 nm (Co(II)/DEDC) and 390 nm (Ni/DEDC). Adjusting the best metal/ligand ratio, supporting eletrolite, pH, and time of analysis, linear analytical curves from 1.0 10-6-4.0 10-4 for Co(II) in the presence of Ni 1.0 10-6-1.0 10-4 mol L-1 were observed. No further treatment or calculation processes have been necessary. Recoveries in different mixing ratios were of 99%. Interference of Fe(III), Cu(II), Zn(II) and Cd(II), and anions as NO3-, Cl-, ClO4-, citrate and phosphate has been evaluated. The method was applied to natural waters spiked with the cations. 2009 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42913584001 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.34